He says he'll have no problem authenticating the stamp.

他说他完全可以鉴定这枚邮票。

Authenticating to a site on the same domain.

对相同域上的站点进行身份验证。

After authenticating, the feed should now load correctly.

身份验证之后，提要就应该正确加载了。

Authenticating using information from the credential vault.

使用来自凭据库的信息进行身份验证。

Passwords are also very important when authenticating users.

在验证用户时口令也很重要。